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revision 1.519 by heimbach, Thu Jul 28 14:35:47 2005 UTC revision 1.979 by mlosch, Thu Apr 24 08:23:20 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7  o adding precip control xx_precip  o pkg/obcs: add code to fix topography gradients normal to open boundaries;
8  o moved ptracer ctrl index 17 -> 32    this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
9      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
10      --> changes results in dome, exp4, internal_wave, seaice_obcs, and
11      tutorial_plume_on_slope.
12    o tutorial_deep_convection :
13      update the set-up and increase resolution and domain size ; start
14      from pseudo initial conditions = output at t=120mn in order to see
15      something happening when running testreport.
16    o pkg/seaice: add os7mp as an advection scheme
17                  add check for advection schemes
18                  add a flag for restoring T and S underneath sea ice
19    o pkg/my82: add netcdf-support and diagnostics
20    o thsice pkg:
21      - Now hsMax limits snow height by turning it into ice following
22        flooding scheme (and now conserving energy)
23      - Slight rewriting of the formula in thsice_calc_thick.F
24      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
25        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
26    
27    checkpoint59p
28    o gchem / dic / cfc :
29      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
30      - add new parameter files: "data.dic" & "data.cfc" ;
31      - various re-arrangement in initialisation & header file ;
32      - fix tutorial_global_oce_biogeo for multi-threaded test.
33    o pkg/dic: test for "pickup_dic" file when restarting ;
34      if no pickup-file, can restart with a re-initialised pH (same as it did
35      before) providing pickupStrictlyMatch is set to False.
36    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
37      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
38    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
39      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
40    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
41     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
42       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
43    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
44       scheme to use for vorticty-term ;
45     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
46       (with default selectVortScheme, return to original discretisation)
47     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
48    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
49    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
50      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
51      also fix diagnostics VISCAHW & VISCA4W.
52    
53    checkpoint59o
54    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
55    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
56      move a few statemens out the main loop into separate loops
57    o pkg/shelfice:
58      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
59        (kg/m^2/s), does not break tests, because in verification/isomip,
60        rhoConstFresh=rhoConst (by accident)
61      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
62      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
63        new file model/src/seawater.F, so that they are available for all pkgs.
64      - convert potential temperature into in-situ temperature. This changes the
65        isomip tests => update tests
66    o add a flag writePickupAtEnd (default=true) to be able to suppress
67      writing a pickup at the last timestep
68    o tools/mpack-1.6 :
69      - disable automake (not working) and autoconf (not needed).
70      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
71        also cleaner with much less compilation warnings.
72    o pkg/profiles:
73      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
74      (for "less than 32 characters name" compiler requirement)
75    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
76      conditions that have a different sampling frequency than S/T/U/V obcs
77    o pkg/diagnostics (stats-diags):
78      - fix global Min/Max in case 1 processor get only empty tiles
79    o genmake2: replace (4 times)
80         make genmake_tc_1.o >> genmake_warnings 2>&1
81      with
82         COMM="$CC $CFLAGS -c genmake_tc_1.c"
83         echo $COMM >> genmake_warnings
84         $COMM >> genmake_warnings 2>&1
85      to make genmake2 always see the value of CC as specified in the optfile.
86    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
87      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
88      - modify verification advect_cs test to test SOM-advection on CS-grid.
89    o pkg/ctrl:
90      - Rewrite of ctrl_map_ini_ecco.F,
91        introducing a generic routine (ctrl_map_ini_gen.F).
92      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
93    
94    checkpoint59n
95    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
96      number in dedicate array "hdiag":
97      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
98        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
99      - many small changes (integer format) for large number of diagnostics
100      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
101        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
102    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
103      usingSphericalGrid, this allows to define the rotated grid coordinates
104      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
105      geographical coordinates according to the inverse of the rotation defined
106      by the Euler angles, so that Coriolis parameter and online-interpolation by
107      exf works with the geographical coordinates on XC/YC/XG/YG.
108      Naturally, this feature does not work with all packages, so some
109      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
110      profiles), because there the coordinates are assumed to be regular
111      spherical grid coordinates.
112    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
113      - introduce isopycnal diffusion coefficient control.
114    o tools/adjoint_options:
115      - additional control vector components.
116    o pkg/mnc: have mnc create marginally meaning full coordinate variables
117      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
118    o pkg/mypackage:
119      - add example of read/write pickup for state-var ;
120      - add entry points to the main code for state-vars diags & write-pickup.
121    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
122      transitions for useExfYearlyFields
123      - add new subroutine that determines the file to read from for
124        use*YearlyFields = .TRUE. and .FALSE.
125      - add a verification experiment to global_with_exf that tests
126        useExfYearlyFields with USE_EXF_INTERPOLATION defined
127    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
128      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
129      subroutines (which could be generated from a template, because they are
130      almost identical), for now they are included in obcs_prescribe_read.F for
131      simplicity
132    o pkg/exf:
133      - add a little more diagnostic to exf_interp_read (in analogy to
134        mds_read_field, can be turned off with debugLevel < debugLevA=1)
135      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
136        ugly but fast by unrolling short inner loops, inserting a unroll=8
137        directive in routine lagran, and splitting a loop and making do while the
138        outermost loop (the latter requires the intoduction of index arrays)
139    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
140    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
141      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
142    o verification/seaice_obcs: updated for restart test and latest options
143    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
144      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
145      for now this is only available for the C-grid code and also within
146      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
147    
148    checkpoint59m
149    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
150      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
151    o gad_som : fix flux output (& diagnostics) to have same units as other  
152      advection scheme fluxes (was previously multiplied by deltaT).  
153    o added verification/seaice_obcs both to test seaice open boundaries
154      and to provide an example matlab scrpt for generating them
155    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
156    o pkg/salt_plume: clean up salt_plume_frac.F to
157      remove redundancy in PlumeMethod 1 and 4
158    o pkg/kpp: added saltplume diagnostics
159    o pkg/obcs and pkg/seaice:
160      - do not set uice and vice to zero when OB*icefile are unspecified
161      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
162      - moved seaice tracer obcs after call to seaice_growth
163    o pkg/salt_plume: added various options for salt plume depth
164      criterion and for vertical distribution of the salt
165    
166    checkpoint59l
167    o pkg/ptracers: new version of ptracers pickup:
168      read meta file and write only fields which are needed to restart.
169      ( same logic as main pickup file ; also using pickupStrictlyMatch )
170    o pkg/seaice:
171      - add timescale for melting due to warm mixed layer as a means of
172        setting SEAICE_availHeatFrac more conveniently
173      - add a CPP-flag/runtime parameter check for flooding algorithm
174      - reformulated availHeat in seaice_growth.F to be independent of AREA
175    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
176      unit changes
177    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
178    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
179      SX vector computer.
180    o pkg/seaice:
181      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
182        seaice forcing fields can now be read only through pkg/exf
183      - removed some unused halos
184    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
185    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
186      or U/VICE from U/VWIND before computing U/VSTRESS
187    
188    checkpoint59k
189    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
190      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
191    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
192      all experiments pass when compile with un-initialised var. checking option.
193    o added pkg/salt_plume
194    o script to test restart (for now, in MITgcm_contrib/jmc_script)
195    o pkg/seaice: new read/write pickup version.
196      read meta file and write only fields which are needed to restart.
197      ( same logic as main pickup file ; also using pickupStrictlyMatch )
198    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
199    o lab_sea.hb87: modify the domain & update output.hb87.txt :
200      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
201      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
202      process. Fixed here by closing the domain at the Northern boundary.
203    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
204    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
205      a set of consecutive levels in/from a 3-D array.
206    o pkg/ptracers:
207      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
208      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
209    
210    checkpoint59j
211    o in pkgs: dic, obcs, offline, rbcs:
212      standard way to compute coeff. for time interpolation between 2 time reccords
213      which retains full precision (& make results less dependent on compiler).
214      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
215    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
216      packages instead of reading ice cover and wind speed separately
217    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
218     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
219      to allow to compile customized code before the update)
220    o cleaning-up:
221      - fix CPP instruction syntax in pkg/obcs
222      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
223        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
224      - fix some threads issue in IO parts.
225    o pkg/dic:
226      - add tons of "_d 0" (--> much better testreports !)
227       and then update outputs of tutorial_global_oce_biogeo
228    o pkg/mom_fluxform:
229      add a special version of momentum advection intended to conserve momentum
230      next to a bathymetry step or a coastline edge. (default = off = #undef)
231    o new read/write pickup version:
232      - for now, only implemented for main (mdsio) pickup file.
233      - write out only what is needed to restart; merge pickup_nh , pickup_ph
234        and main pickup together.
235      - read meta file; read only what is needed to restart; stop if a field
236        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
237        if it make sense (even if the restart is not perfect).
238      - if no meta file, assume that pickup to read corresponds exactly to
239        a pickup that would currently be written.
240      - read pickup written in the old format (until checkpoint59i) if it
241        recognizes an old meta file (no field-list).
242      - add a meta file in exp. which starts from a pickup: 2 cases:
243        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
244         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
245        b) a meta file describing the content of the associated pickup file
246         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
247    o pkg/mdsio & pkg/rw:
248      - new routine to read a meta file ; new set of routine to read
249        Multiple-fields file (with meta file).
250    o added open boundary conditions capability for seaice
251        HSNOW, HSALT, UICE, and VICE
252    
253    checkpoint59i
254    o adjoint:
255      * fix multiDimAdvection adjoint
256        (partial recomputation problem by TAF for fVerT(:,:,kDown)
257        and comlev1 size definition (maxpass vs. max. number of tracers)
258      * verification/global_ocean.90x45x15 adjoint now tests
259        NLFS and multiDimAdvection using DST3 (=30)
260      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
261    o pkg/kpp: add "_d 0" to real constant (if missing);
262      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
263      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
264    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
265      for internal parameters related to restart process (formerly from PARAMS.h)
266      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
267    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
268      as argument. (only atm2d & obcs write_pickup have not yet been updated)
269    o pkg/monitor:
270      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
271      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
272      - account for deep Atmosphere factor and density factor (anelastic)
273    o added open boundary conditions capability for seaice HEFF and AREA
274    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
275      thermodynamics
276      - requires a little reorganization, which affects the testreport results
277        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
278        so that now the conservative form is tested
279      - add a few comments
280    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
281    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
282    o add new diagnostics to seaice: advective, diffusive fluxes (only for
283      multidim-advection, for scheme 2 they are not filled) and transports,
284      thermodynamic growth rates
285    o change units of EmPmR (inside the code, + within coupling interface)
286      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
287      Affects results @ truncation level (cg2d match) and update output of
288       experiments: lab_sea(6), global_ocean.90x40x15(10),
289      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
290      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
291      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
292      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
293    
294    checkpoint59h
295    o pkg/exf:
296      - improve vectorization by moving if-statement out of loops in
297        exf_mapfields, exf_radiation
298      - exf_bulkformulae.F: introduce 2D fields and vectorize code
299    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
300    o testreport:
301      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
302        monitor & update offline_exf_seaice exp. output.
303      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
304    o pkg/seaice:
305      - bug fix in the evp solver: boundary conditions were affected be
306        masking of zMax/zMin (changes results)
307      - minor bug fix in boundary conditions in seaice_calc_strainrates
308        (changes results for no_slip)
309      - seaice_lsr.F: make interpolation of eta dependent on boundaries
310      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
311      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
312        stress formulation and no-slip boundary conditions
313    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
314      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
315    o pkg/seaice: a first HSALT time stepping equation has been checked in
316    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
317      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
318      without requiring DO-IF statements
319    o pkg/thsice:
320      use continuous power-law function for partition of energy between lateral
321      melting/freezing and thinning/thickening ; old code using step function
322      still available with #undef THSICE_FRACEN_POWERLAW
323      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
324    o testreport: change AD testing : check against results/output_adm.txt
325      using same scripts as for forward test.
326    
327    checkpoint59g
328    o adjoint testing: in preparation for changing testreport:
329      - output format: cost and grad written on separated lines
330      - ad output results in directory "results" (instead of "results_ad")
331    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
332    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
333    o pkg/ecco: allow user defined cost function contributions
334    o testreport:
335      Allow to choose (per experiment) the list of tested output variables
336       and the main variable (used to issue a pass/FAIL ) ;
337      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
338      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
339      Also modify printing of summary:
340       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
341       b) echo the list of tested variables in the individual summary.txt of
342          each experiment.
343    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
344      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
345      (but still depend on the tile decompostion of the domain).
346    o pkg/seaice: change a discretization detail to make the B-grid code
347      "more symmetric". This change is likely to remove all "ridges/leads" that
348      where quasi-aligned with the grid in B-grid solutions. It may also be
349      the solution to the stress coupling issues with the B-grid.
350    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
351      remove .cvsignore from input dir. (since testreport no longer run here).
352    o pkg/thsice:
353     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
354     - fix reshaping of sea-ice just after advection:
355       melt all the ice only if ice-volume is too small.
356     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
357       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
358     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
359    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
360      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
361    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
362      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
363      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
364      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
365      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
366      -> update output.txt
367    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
368     this affects truncation error: -> update output.txt of exp:
369      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
370      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
371    
372    checkpoint59f
373    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
374    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
375      a bounded range (in forward mode)
376    o pkg/ecco, ctrl, autodiff and mom_common:
377     internal parameter controls, completements of implementations
378    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
379    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
380      (not seem any difference in testing results).
381    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
382       at face corners.
383    o pkg/generic_advdiff:
384     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
385      loop range indices for computing vertical advection tendency
386      and do the calculation in the interior only (no overlap) ;
387      for now, only implemented for SOM advection (to save CPU time).
388     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
389    o exch2 adjoint
390      First set of changes:
391      - add exch2 hand-written adjoint templates
392      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
393        This will require cleanup in pkg/autodiff/*.F
394        (changed routines currently kept separate in verif. code/)
395      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
396        that used to hide exch2 or cubed-sphere specific code
397        (commented via 'cph-exch2')
398    o pkg/seaice
399      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
400    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
401       output of global_ocean.cs32x15.thsice .
402    
403    checkpoint59e
404    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
405      for B-grid vector (not yet tested) and C-grid vector (<- only used
406      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
407    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
408      (#ifdef ALLOW_SALT_PLUME)
409    o gather_2d/scatter_2d: removed halo regions
410    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
411      scheme and the corresponding test case (under front_relax dir). For now,
412      only available with Skew-flux form and not yet tested in realistic set-up.
413      adjoint: store directives updated, but gradient checks deteriorated,
414      so maybe GM/Redi adjoint is now broken.
415    o seaice adjoint
416      * add AREA, HEFF, HSNOW as control variable
417        (should not change lab_sea results)
418      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
419    o pkg/seaice:
420      * added computation of saltFlux in seaice_growth;
421        For time being, sea ice salinity is assumed constant
422        contribution of snow flooding to freshening of sea ice is neglected.
423        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
424        defaults to 0.0 in order to maintain backward compatibility.
425        Typical values for SEAICE_salinity are 4 to 10 g/kg.
426      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
427      * added SEAICE_availHeatFrac, which specifies fraction of surface level
428        heat content used to melt or grow ice
429      * commented out cap of HICE: it helps keep ice thinner
430      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
431      * applied OBCS T/S mask to HEFFM sea ice mask
432    
433    checkpoint59d
434    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
435     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
436     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
437    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
438     and change default value of parameter "GM_Small_Number";
439     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
440       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
441       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
442    o pkg/ecco: cost function when applying pkg/smooth to controls
443    o pkg/ctrl: add forcingPrecond run time parameter
444    o pkg/seaice:
445     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
446     - fix bug in metric terms of u-equation in LSR solver (implicit part),
447       changes verification/lab_sea
448     - rearrange implicit part of u-equation in LSR solver to make it easier to
449       read, understand, and debug. This causes changes at the truncation level.
450     - fix (serious) bug in the boundary conditions (sign error in the implicit
451       part) of the LSR solver. Changes all LSR results.
452     - fixed problem with HSNOW initialization to avoid thick snow when AREA
453       is initilized with small values - does not change lab_sea results.
454     - added HsnowFile initialization capability
455    o pkg/smooth: addition to model/src and pkg/ctrl so allow
456     initialization of pkg/smooth and application to control vector
457    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
458    o dependencies: pkg/profiles requires pkg/cal
459    o pkg/profiles:
460     - added option ALLOW_PROFILES_GENERICGRID
461         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
462         that interpolation information (grid points and coefficients) is provided
463         within the netcdf input files.
464         -> sample matlab scripts can be found in MITgcm_contrib/gael
465         that allow you to prepare netcdf input files.
466     - also modified: cleaner include statements, cleaner error print statements,
467       cleaner stops when error, and more tests of the netcdf input files consistency.
468    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
469    o pkg/seaice:
470     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
471       requires a new routine: seaice_diagnostics_fill.F
472     - make sure that seaice does not move if not forced (pressure replacement
473       method, Hibler and Ip, 1995), changes results
474     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
475     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
476       It is turned off by default (=-1.), because it changes the results.
477     - make it possible to read AREA from a file, too.
478    
479    checkpoint59c
480    o add S/R and diagnostics for oceanic mixed-layer depth
481    o move GMRedi call after all vertical mixing schemes (including KPP)
482    o pkg/thsice:
483     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
484      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
485    o pkg/obcs:
486     - bug fix for balance code
487    o pkg/seaice:
488      - allow values of SEAICE_elasticParm > 1
489      - add new parameter SEAICE_evpTauRelax as an alternative
490        to SEAICE_elasticParm
491      - make lsr boundary conditions free slip (by default), changes result
492      - add code for no slip boundary conditions for lsr
493      - set minimum of zeta to zero (and not 4e8) (changes results)
494      - add a cap on AREA after advecting AREA if seaice_growth is not called
495    o change calculation of Visbeck K:
496      - no longer depend on tapering scheme; instead, compute slope (limited
497        by GM_maxSlope). this is equivalent to what was comuted before with
498        clipping or linear tappering.
499      - fix vertical averaging (wrong by 1/2 level)
500      - leave the old version (but will not be maintained) within
501        #ifdef OLD_VISBECK_CALC / #endif
502      - update output of exp. ideal_2D_oce
503    o change error catch in calc_r_star to improve vectorization
504    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
505      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
506    o adjoint:
507      Re-organized adjoint checkpointing according to Matt Mazloff
508      (but with modifs/completions/cleanups)
509      Storing is now bundled into large arrays to optimized I/O
510      (and second step in cleanup of the_main_loop)
511    
512    checkpoint59b
513    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
514      - export/import (between ocean & coupler) fields needed for ocean DIC.
515    o pkg/seaice:
516      - get rid of three more exchanges seaice_calc_viscosities (required
517        different loop boundaries in seaice_lsr and seaice_ocean_stress)
518      - bug fix in seaice_ocean_stress (update of lab_sea required)
519      - reduce loop boundaries to necessary minimum also in seaice_evp
520      - go back to the old way of computing deltaC/Z as the adjoint likes that
521        better
522    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
523      passive tracer to an Age Tracer) + update output.txt
524    o pkg/exf:
525      - implement A-grid / C-grid selection for wind-stress input files.
526      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
527      for now, in exf_bulk_largeyeager04.F only :
528      - change implementation for case where windspeed + 2. components wind-stress
529        are read-in. AND use rhoConstFresh to convert evap.
530    o pkg/seaice:
531      - use correct EXCH_UV for wind-forcing (on A-grid).
532      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
533        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
534    o pkg/exf:
535      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
536      EXF_INTERPOLATION:
537      - merge global_with_exf/code version of exf_interp_read.F
538        to the main code ;
539      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
540        reading the file ; Important: This options needs to be defined to recover
541        previous code.
542        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
543      - no longer loose real*8 precision along the way when using exf_iprec=64.
544    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
545      - change discretisation of evp-solver in order to avoid another exchange
546        (changes lab_sea) and clean up a little
547      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
548        help the adjoint (this also changes the results slightly)
549      - add a few "_d 0" where they had been missing in seaice_evp.F
550      - cleaning up: remove unused seaice_calc_rhs.F
551    o pkg/exf: some cleaning-up:
552      - change various "constants" into runtime parameters
553      - cleaned-up Large&Yeager04 routine which should eventually
554        replace exf_bulkformulae.F (changed names of S/R and CPP)
555        and merged various ALLOW_ATM_WIND options
556     only used with thsice pkg (in thsice_get_exf.F):
557      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
558        which are used when useStabilityFct_overIce=TRUE (= the default)
559      - change default values of ice & snow emissivity and scale downward LW
560        by ice & snow emissivity.
561    o pkg/thsice:
562     fix few little problems, in thsice_calc_thickn.F:
563      - growth vertically (and not laterally) if iceFrac == iceMaskMax
564      - melt only laterally if hIce < hThinIce (as the comments say)
565      and in thsice_extend.F:
566      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
567      - start to form ice as soon as the minimum ice-volume is reachable.
568     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
569      and cpl_aim+ocn
570    o pkg/kpp
571     - move computation of surface related input fields to KPP into a new
572       subroutine kpp_forcing_surf.F
573     - remove wrong (within bi,bj loops) EXCH calls.
574     - little cleaning (add argument myThid in last position, cvs header ...)
575     - for now, fix conservation problem by exchanging KPPviscAz (may not
576       be the best fix)
577    o pkg/seaice
578     - check for inconsistent evp parameter/cpp-flag combination
579     - remove leftover errIO flat for obsolete name list error handling
580    o OpenAD
581     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
582    
583    checkpoint59a
584    o pkg/seaice: some parameter clarifications and a little bit of clean up
585    o pkg/thsice: rename run-time parameters:
586       himin       -> hIceMin
587       himin0      -> hThinIce
588       hihig       -> hThickIce
589       i0          -> i0swFrac
590       transCoef   -> bMeltCoef
591       frac_energy -> fracMelting
592      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
593       with default values (for now) that do not change the results.
594      remove old version of thsice vars advection in pkg/seaice.
595    o in FFIELDS.h:
596      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
597      - make pLoad & sIceLoad always available (but still only used if
598         ATMOSPHERIC_LOADING is #define).
599    o pkg/kpp: replaced _KPP_RL with _RL
600    o bug fixes for vertical diffusivity computations when both KPP and
601        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
602        are no longer updating the vertical diffusivity array
603        (passed as argument) but are (re-) setting those arrays.
604    o pkg/seaice: fix bug in evp solver, while doing that
605      - change (improve?) discretization of stress computations for both
606        cgrid-lsr and evp solver
607      - add a new routine to compute strain rates
608      - the above changes lab_sea results
609      - add no slip conditions for evp solver (off by default), lsr-version
610        may follow
611      - fix exchange for shear at Z-points (does not change lab_sea)
612      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
613        (to force the user to pick a time step since there is not "safe" way
614        of choosing it)
615      - add principal stress diagnostics
616      - rearrange fields for evp a little to avoid having to call a: too many
617        exchanges and b: exchanges for stress trensor components which we do
618        not have.
619      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
620        of evp, complete rewrite for lsr case (latter is does not yet work
621        in all cases)
622    o pkg/kpp: add code to have mixing in shelf ice caverns
623      - add myThid to all kpp routines (long overdue)
624    
625    checkpoint59
626    o pkg/exf:
627      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
628        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
629      - move exf header files from lower_case.h to UPPER_CASE.h ;
630        add missing cvs Header & Name
631      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
632      - add namelist param. selectStressGridPosition, exf_monFreq
633      - retire many _CLIM routines, and remove data.exf_clim
634        + params moved to data.exf
635        + climsst, climsss now handled by exf_set_gen, i.e.
636          climss?period=0 refers to constant field,
637          climss?period=-12 to monthly forcing
638      - split up namelists in data.exf
639    o pkg/seaice:
640      - remove seaice_exch and seaice_exch_uv
641      - remove superfluous exchange of theta
642      - add myThid to seaice_budget_ocean/ice
643      - add new interface for atmospheric wind forcing (C-grid only)
644        + new routine
645        + two new field (taux, tauy for stress over ice)
646        + removed one global field (DAIRN) for C-grid case only
647    o pkg/thsise
648      - 2nd set of modifs for thsice adjoint in conjunction with exf
649    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
650    
651    checkpoint58y_post
652    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
653      vertical diffusivity, similar to that in MOM4; turned on using
654      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
655      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
656    o Added capability for 3D specification of background vertical diffusion
657      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
658      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
659      "data" file that contains the 3D vertical diffusivity coefficients.
660    o ice dynamics (pkg/seaice) with thsice thermodynamics:
661      - add code within pkg thsice to advect & diffuse sea-ice fields
662      similar to (and will replace) what has been added in  seaice_advdiff.F,
663      but: - conserving Mass, Heat & Salt.
664           - better when using non-linear advection scheme (not yet fully tested)
665           - can also be used in atmospheric set-up (for now, only the diffusion).
666    
667    checkpoint58x_post
668    o IO option for global-file compact format:
669      - add options when generating topology (utils/exch2/matlab-topology-generator)
670      - add I/O capability (pkg/mdsio).
671      - adapt utils/matlab/rdmds.m to read this format.
672      for now long-line format not yet supported by pkg/mdsio (& exch2).
673    o shelfice: add a few diagnostics
674    
675    checkpoint58w_post
676    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
677      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
678      (and replace horiVertRatio in NH code).
679      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
680                         and tutorial_plume_on_slope (sensitive to truncation)
681    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
682      directly to drive seaice model (C-grid only)
683    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
684     - reintroduce computation of wind from stress,
685     - compute tau (in exf_bulkformulae.F) from windstress averaged to
686       mass points to avoid tau = 0
687     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
688    o rdmnc.m: make it work with "global" files created with gluemnc
689    o rdmnc.m : some improvements in dealing with singleton dimension
690      (tested on all testreport mnc output files).
691    o genmake2: disable pkg/profiles if netcdf test fails.
692    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
693    o move call to cal_readparms up to make calendar parameters/variable available
694      to all packages
695    
696    checkpoint58v_post
697    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
698      useDynP_inEos_Zc tested.
699    o pkg/exf: changes to properly interpolate/mask/scale initial fields
700    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
701      and portions thereof.  See read_cs.txt for description and examples.
702    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
703      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
704      following the great-circle arc between those 2 points.
705    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
706      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
707    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
708     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
709     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
710     - still needs work (not working with some options ; efficiency to improve)
711       and serious testing.
712     - use this scheme for temperature & salinity in 2 advection test exp.:
713       advect_xy & advect_xz, respectively.
714    
715    checkpoint58u_post
716    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
717    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
718    o testreport: add option "-skipdir" to skip some test.
719    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
720      momentum calculation.
721    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
722    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
723      remove checkpoint.F and the_correction_step.F (no longer used);
724      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
725    o add option (linFSConserveTr) to correct for tracer source/sink due to
726      Linear Free surface
727    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
728    o pkg/thsice: fix reading mnc-pickups
729    
730    checkpoint58t_post
731    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
732    o pkg/mdsio:
733     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
734       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
735       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
736     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
737     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
738       either MDS_READ_FIELD or MDS_WRITE_FIELD )
739     - new S/R (to replace MDSWRITEMETA), which allows to write more
740       informations (variable names, time ...) to meta files.
741     - modify rdmds.m to give back the meta file content.
742    o pkg/diagnostics: change vertical interpolation to be safer, and more
743       flexible (define p-levels to interpolate to in data.diagnostics);
744      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
745       diagnostic pointer.
746    o pkg/seaice: more cleaning up of seaice_growth, added many comments
747    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
748    o fix multi-category seaice:
749     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
750       SEAICE_MULTICATEGORY
751     - fix short wave heat flux
752    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
753       and allow to use EVP solver. Change forward lab_sea: test both EVP
754       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
755    o Initial check-in of lab_sea adjoint
756      (very similar to natl_box_adjoint/code_seaice)
757      * used C-grid and EVP solver
758      * used KPP, GM/Redi
759      * uses inAdExact=.TRUE.
760      * gradient checks fail for both ADM and TLM
761        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
762        f.d. gradients actually seem more problematic than ADM, TLM gradients;
763        issue is related to forward mismatch between g77 an ifort
764    o pkg/seaice: overhaul of thermodynamics
765     - growth.F and groatb.F are replaced by new routine seaice_growth.F
766     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
767     - move a few global fields out of SEAICE.h into seaice_growth.F and
768       make them 2D (FICE/QNETO/ ...)
769     - remove FO (it is the same as QNETO)
770     - introduce a few local fields to avoid modifying external fields such
771       as atemp, etc.
772    
773    checkpoint58s_post
774    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
775      changed exf_set_gen.F so that
776        genperiod=0 means input file is one time-constant field and
777        genperiod=-12 means input file contains 12 monthly means
778    o CG2D: use pre-computed solver main-diagonal (stored in common block);
779      this affects truncation error ; generate new output file for exp. which
780      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
781        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
782        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
783        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
784        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
785        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
786    o start implementation of deep-atmosphere and anelastic formulation
787    o verification: remove 2nd copy of input files and use script "prepare_run"
788      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
789    o mom_common/vecinv/fluxform: fix a few initialisation isssues
790    o profiles: fix for multithreaded case
791    
792    o diagnostics: rename few diags:
793      s/'PRESSURE'/'RCENTER '/g
794      s/'TICE    '/'oceFreez'/g
795      s/'TAUX    '/'oceTAUX '/g
796      s/'TAUY    '/'oceTAUY '/g
797      s/'SWFLUX  '/'oceQsw  '/g
798      s/DIFx/DFxE/g
799      s/DIFy/DFyE/g
800      and add few ocean-forcing diagnostics:
801      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
802    o modifications to pkg/seaice/growth.F and budget.F, which change results of
803      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
804      as actual snow thickness.  It now refers everywhere to effective snow
805      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
806    
807    checkpoint58r_post
808    o modifications to pkg/seaice/growth.F, which change results of
809      lab_sea experiment: fixes pertain to melting snow over open water, to
810      masking EVAP under sea ice, and to using the correct AREA variable for
811      computations of EVAP, PRECIP, HSNOW, and GHEFF
812    o add ability to read bathy, salt, and theta using MNC (off by def)
813    o add flooding algorithm and advection of HSNOW for pkg/seaice;
814      both are turned off by default and do no change any results
815    o seaice advection with pkg/thsice: a step toward the use of non-linear
816      advection scheme, but #ifdef or commented out for now (requires more EXCH).
817    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
818      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
819      in natl_box (affects results @ truncation level: update output.txt)
820    o multi-threading and IO:
821      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
822      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
823        (needed to work with SingleCpuIO): tested in all verif. exp.
824    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
825      affects the results (but none of the verification test uses this scheme).
826    o Adding some pkg/diagnostics capability to pkg/seaice
827      (will certainly be subject to changes)
828    o ctrl: adding new control variables:
829      lwflux, lwdown, evap, snowprecip, apressure, runoff
830    
831    checkpoint58q_post
832    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
833      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
834      high_res_cube configuration by 4% on Columbia.
835    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
836      add (in global_with_exf/code) a version of EXF_INTERP_READ without
837      dynamical allocation (seems to work in multi-threaded).
838    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
839      single CPU io) so that TAF does not have to see EESUPPORT.h
840    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
841    
842    checkpoint58p_post
843    o obcs: stop if obcs is used with useCDscheme = .true.
844    o shelfice:
845     - fix a sign error so that no slip at shelfice interface works
846     - remove stop for combination non-hydrostatic code and shelfice. That does
847       not mean, that the results are correct, but at least they are numerically
848       stable
849    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
850    o added adjoint exch routined for all exch*3d* routines
851      and updated flow directives
852    
853    checkpoint58o_post
854    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
855      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
856    o change controling S/R for writing pickup file (new S/R do_write_pickup)
857      and clean-up reading/writing of pickup files.
858    o fix local version of read/write pickup (NH part) in rotating_tank/code
859    o simplify EXCH interface:
860     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
861     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
862    o added the regrid package
863    o shelfice:
864     - add a simple boundary layer scheme to reduce noise
865     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
866    
867    checkpoint58n_post
868    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
869       local variable (not in common block).
870    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
871      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
872      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
873        to work with SingleCpuIO.
874    o add "_d 0" to real constant of pkg/cfc subroutines ;
875       update exp. cfc_exemple & tutorial_cfc_offline output files.
876    o multi-threading and IO:
877      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
878        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
879      - barrier before and after reading.
880      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
881      - avoid using MDS_WRITELOCAL for LAND pkg output.
882      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
883        common-block variables ; Allows multi-threading with master-thread IO.
884    o change default MAX_NO_THREADS from 32 to 4 ;
885      and stop cleanly when MAX_NO_THREADS is too small.
886    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
887    
888    checkpoint58m_post
889    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
890       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
891    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
892       keep global_ocean.90x40x15 (for AD testing) with former secondary test
893       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
894    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
895        add MITgcm_tutorials (= code + all the tutorials)
896    o ecco, option to compute cost for total ssh (mean+anom)
897    o consistent with addition of ptracer and ssh in pkg/profiles
898    o profiles: adding ptracer and ssh
899    o testreport: change multi-test output-file name
900      (from output.txt.{name} to output.{name}.txt)
901    o profiles: now ok for mutli-tiles case
902    o seaice: add 4 parameters for different advection schemes for area,
903      (effective) seaice thickness, enthalphy, and snow height. Their default
904      is the standard parameter SEAICEadvScheme
905    o calc_gw:
906     - add cosFacU in zonal viscous flux (harmonic.visc.).
907     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
908       of tutorial_plume_on_slope.
909    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
910    o calc_gw: true flux-form, account for horizontal grid spacing.
911      update rotating_tank results, but not plume_on_slope (affected at
912      truncation level, 11 digits).
913    
914    checkpoint58l_post
915    o calc_gw:
916     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
917     - remove side-drag for now (need to fix it); update plume_on_slope results.
918     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
919    o commit code to make SST/SSS weights spatially variable
920      (based on either variable in-situ or variable initial T/S weights)
921    o pkg/ecco:
922      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
923        now based on horizontally varying weights wthetaLev, wsaltLev
924      * cost_averagesflags now returns year indices in addition to day, month
925      * sflux balance is performed on annual basis
926        (sflxumm, sfluxmm2, bal_sfluxmm)
927      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
928        including separate counting and multipliers
929    o pkg/rbcs
930      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
931    
932    checkpoint58k_post
933    o testreport:
934     - always build in dir. "build" (if not there, mkdir build instead of building
935       & running in input)
936     - run in dir run (if it exists), in build otherwise.
937     - call prepare_run (if input/prepare_run exists)
938     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
939    o pkg/exf modifications to interpolation and rotation routines for more
940       reasonable treatment of North Pole singularity: for tracers North Pole
941       value is set to northernmost zonal-mean value, for zonal velocity it is
942       set to zero, and for meridional velocity it is set to northernmost value.
943    o pkg/exf/exf_check_range.F
944     - add tile index to diagnostics and move stop statement to the very
945       end of the routine.
946    o pkg/diagnostics: (diagnostics_main_init.F)
947      define title of isomorphic variables according to the current config.
948    o pkg/thsice with pkg/seaice dynamics:
949    - fix domain of computation (interior only, required for exf) and do exchanges
950    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
951    o towards a standard way of dealing with multi-threading in MONITOR
952      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
953    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
954       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
955    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
956    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
957    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
958       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
959    o tracer advection:
960     - clean-up and simplify calc_common_factors.F
961     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
962       advection subroutine (but still not used within DST advection S/R)
963    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
964    
965    checkpoint58j_post
966    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
967      from file (collects calls previously in FORWARD_STEP)
968    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
969    o adjoint store dir. adjusted accordingly
970    o genmake2
971      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
972    
973    checkpoint58i_post
974    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
975      on wind stress (SEAICEstressFactor defaults to 1.)
976    o Total number of Timers is finite (<=40): comment out 2 non-essential one
977      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
978    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
979      on CS-grid: no longer loosing mass.
980    o exf & curvilinear-grid: no longer modify longitude xC & xG.
981    o pkg/ggl90: fix sloppy output and fix a bug
982    o pkg/seaice: added SEAICEuseEVPpickup parameter
983      - Set to false in order to start EVP solver with
984        non-EVP pickup files when using SEAICEuseEVP
985      - fix sign error in diffusion in seaice_calc_rhs
986    
987    checkpoint58h_post
988    * Modifications for bottom topography control
989      o replace hFacC by _hFacC at various places
990      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
991      o add non-self-adjoint cg2d_nsa
992      o update autodiff support routines
993      o re-initialise hfac after ctrl_depth_ini
994      o works for 5x5 box, doesnt work for global_ocean.90x40x15
995    * Adding verification for 5x5 box (4-layer) bottom topography control
996    
997    checkpoint58g_post
998    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
999       used for mean seasonal cycle, mean diurnal cycle); add an example
1000       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1001    o pkg/ggl90:
1002      - add parameter (minimum surface kinetic energy)
1003      - fix bug (avoiding division by zero)
1004    o couple pkg/thsice to pkg/seaice:
1005      - modify advection in seaice to accomodate new scalar fields to be advected
1006      - only muliDimAdection scheme work with seaice/thsice
1007      - mapping of thsice-variables to seaice-variables, back and forth
1008      - does not break the verification experiments, but does not give the
1009        desired results either
1010    o pkg/seaice
1011      - make (default) second order advection a bit less confusing?
1012    
1013    checkpoint58f_post
1014    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1015      to pkg/seaice):
1016      - new routines thsice_map_exf and thsice_get_exf provide the interface
1017      - add an additional formal parameter to thsice_solve4temp
1018    o pkg/exf:
1019      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1020      - correct Stefan-Boltzmann constant
1021      - new parameter for longwave surface emittance
1022      - separate some stuff from exf_bulkformulae into new routines  
1023        exf_radiation, exf_wind
1024      - add new parameters and constants: longwave emissivity for ocean, ice
1025        and snow, evaporation parameters over ice
1026      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1027        either wind from stress or stress from wind
1028    o pkg/thSIce:
1029    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1030    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1031       and THSICE_CALC_THICKN
1032    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1033    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1034      to make debugging easier.
1035    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1036    o pkg/bulk_force:
1037      - clean-up comments and parameters ;
1038      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1039    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1040      generate new output for test-experiment: aim.5l_cs.thSI
1041    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1042      testreport accordingly
1043    
1044    checkpoint58e_post
1045    o SEAICE_CGRID adjoint done
1046    o R_STAR adjoint implemented.
1047      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1048      * need to sort out init. of h0facc, etc.
1049    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1050      to be able to use it in pure forward.
1051    
1052    checkpoint58d_post
1053    o upgrade simple test-experiment to tutorial example:
1054     step.1: duplicate the experiment and (step.2) will remove the old copy.
1055      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1056      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1057      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1058      tutorial_global_oce_biogeo    <- copy of dic_example
1059      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1060      tutorial_plume_on_slope       <- copy of plume_on_slope
1061      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1062      tutorial_global_oce_optim     <- empty for now (David ?)
1063      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1064     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1065    o correct a sign problem in cost_scat.F
1066    o obcs and ptracers: fix boundary conditions for advections schemes
1067      with larger stencil
1068    o thsice adjoint: start
1069    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1070      completeness
1071    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1072      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1073    o ptracers adjoint:
1074      * avoid extensive recomputatations
1075      * fix missing re-init. of gptr (missed by TAF)
1076    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1077      me to turn off the excessive output to STDOUT that this package produces
1078    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1079      and add those terms in Vector-Invariant formulation.
1080    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1081      if the control period (xx_hfluxperiod etc) is 0
1082    o in profiles pkg, clean routines and fix details
1083    o in ecco pkg, reading ssh data:
1084      fix problem in case the model does not start at iter0=0
1085    o fix mnc-pickup/restart for ptracers
1086    o new package prifiles:
1087      code to compute profile-based cost by Gael Forget
1088      (modifs in ecco, ctrl, autodiff)
1089    o Benign bug fix in initialization (spotted by M. Mazloff) of
1090      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1091    
1092    checkpoint58c_post
1093    o adjoint: finish NLFS adjoint and provide reference output in
1094      verification/global_ocean.90x40x15/results_ad_nlfs
1095    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1096      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1097      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1098      with SEAICE_CGRID defined.
1099    o move calendarDumps from "data" to "data.cal" and clean-up the code
1100      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1101    o add useEXF & useCAL flags (for now, set in hard-coded way)
1102    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1103      (were missing in NH mode, and wrong in quasihydrostatic mode).
1104      waiting for Chris updated version of calc_gw to add those CALLs.
1105    o fix bug in quasihydrostatic S/R ;
1106      add a test for this option: global_ocean.90x40x15.qshyd
1107    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1108      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1109    o add on/off flag useOffLine for package OFFLINE
1110    o seaice:
1111      - modify advection so that it works also on the C-grid
1112      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1113        problem in multi-tile runs with C-grid
1114      - add flags for clipping ice velocities and/or masking solver forcing
1115      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1116        C-grid solver
1117      - added a few comments to seaice_diffusion.F
1118      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1119        are now exclusive)
1120      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1121        required re-ordering the code a little:
1122       + make DAIRN global variable (defined in SEAICE)
1123       + move computation of the viscosities eta and zeta into a new separate
1124         routine (because I need to recompute them in seaice_ocean_stress.F)
1125    
1126    checkpoint58b_post
1127    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1128      update output.txt of exp. aim.5l_cs.thSI
1129    o various mnc cleanups and improvements:
1130      + shrink lookup tables by factor of ~4
1131      + better error reporting when running out of lookup space
1132      + able to handle longer path/file names (up to 500 chars)
1133    o adjoint:
1134      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1135      - TBD: "hidden" mom_vecinv recomp. in dynamics
1136    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1137     (allow to differentiate between forcing components using new integer flags:
1138      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1139     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1140    o ecco
1141      - enable trend removal from SSH anomaly obs.
1142    o adjoint
1143      - a fix for PmEpR when #undef EXACT_CONSERV
1144      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1145      - try to fix "hidden" recomp. in forward_step for NLFS
1146        (NLFS seems broken sometimes after I checked it in)
1147    o seaice:
1148     - add c-grid version of the dynamic solver:
1149       + three new routines that are the c-grid substitute lsr, dynsolver
1150         and ostres
1151       + put a few fields that were local to dynsolver into global common
1152         blocks, so that I can move the computation of stresses etc into
1153         seaice_lsr (saves coding but may break the adjoint).
1154     - replace more hardwired parameters by runtime parameters
1155     - add ice masks that mask the rhs of the implicit solvers where there
1156       is no ice (commented out in seaice_dynsolver, because i am not sure
1157       if this works properly), eventually this should replace the clipping
1158       of ice velocities in seaice_dynsolver to +/-40cm/s.
1159    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1160      include it only where its needed
1161    o move balancing of fluxes before the call of external_forcing_surf
1162    o seaice:
1163      - correct units of turning angles (now they are really in degrees)
1164      - move computation of GWATX/Y out of main routine into dynsolver
1165      - initialize GWATX/Y in seaice_init
1166    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1167      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1168    o seaice: add runtime flags for turning angles (default to zero)
1169    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1170      and trend from exf forcing and ctrl control adjustments
1171    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1172      (since checkpoint57x_post)
1173    o change the default rotation period to 86164.s = the Earth rotation
1174    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1175      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1176    o seaice advection: add code for choosing between the default (2nd order
1177      central differences) and multiDim advection schemes provided by
1178      pkg/generic_advdiff
1179    o seaice:
1180      - removed all references to SEAICE_GRID.h fields from
1181        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1182        (cubed-sphere configuration will change a little)
1183      - grid computations in seaice_init are obsolete now.
1184      - cleaned up code a little so that is easier to read (hopefully).
1185      - added new (better?) discretizations of default advection and diffusion
1186        (turn on with SEAICEuseFluxForm)
1187      - replace 1 in 3d global fields by kSurface in growth.F
1188      
1189    checkpoint58a_post
1190    o seaice:
1191      - bug fix in advect.F
1192    o shelfice:
1193      - separate shelfice load anomaly from pload (breaks with time
1194        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1195        Its default is 0., but it may be computed more cleverly from (unknown)
1196        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1197        done offline. A good approximation of the pressure load anomaly is
1198        necessary to avoid large initial adjustment processes underneath
1199        deep-reaching shelfice.
1200      - small fix in ISOMIP shelfice_thermodynamics
1201      - add more sophisticated thermodynamics of Hellmer (1989), this is
1202        now the default
1203      - give a few constants more intuitive names
1204    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1205      if bulk formulae are used in long integration (especially EmPmR). Turn
1206      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1207      if balancePrintMean, the imbalance that is substracted is printed to
1208      STDOUT.
1209    o fix bug (typo) in obcs_apply_eta.F
1210    o add a new package shelfice which enables us to model the circulation
1211      underneath shelf-ice with draughts of hundreds of meters.
1212     - works
1213     - to do: + include improved thermodynamics
1214              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1215                instead of new field kTopC
1216              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1217                instead of new field R_shelfIce and new code in ini_depth.F
1218                and ini_mask_etc.F?
1219              + adjust vertical mixing schemes?
1220    o seaice pkg:
1221     - add a cpp-flag to include a simple formula for a salinity dependent
1222       freezing point of sea water at the surface
1223     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1224       meridional stresses are now different (and hopefully correct)
1225    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1226       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1227       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1228    o pkg/diagnostics: add options and parameters for regional-statistics
1229       diagnostics ; define regions by reading a region-mask from a file
1230       (might add other options later)
1231    o pkg/bulk_force:
1232     - add option and parameters to use AIM surface-flux formulae.
1233     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1234       others forcing fields (defined in PARM05, parameter file "data") are loaded
1235       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1236     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1237     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1238     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1239       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1240     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1241    
1242    checkpoint58
1243    o add "--embed-source" option to genmake2 which, when the supporting
1244      tools can be compiled (as determined by genmake2) will turn on the
1245      embed_files package which then embeds the entire MITgcm source code
1246      (*.[fFhc] + Makefile) used for the build within the executable
1247      - requested by CNH but off by default
1248      - adds a paltry <9MB to the mitgcmuv executable in most cases
1249      - only writes the output when useEMBEDSRC in eedata is true
1250    o clean up 3-dim. relaxation codes:
1251      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1252      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1253      * Thanks to Tom Haine for testing!
1254    
1255    checkpoint57z_post
1256    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1257      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1258    o fix the pickup behavior for obcs in combination with ptracers
1259    o fix a bug in ptracers_external_fields_load
1260    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1261      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1262    o transfered surface NH pressure to eta field (if exactConserv).
1263    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1264         and update lab_sea output.txt file.
1265    o completing 3-dim. relaxation code: additional term
1266         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1267      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1268      * At compile time, in "EXF_OPTIONS.h" set
1269          #define  ALLOW_CLIMTEMP_RELAXATION
1270          #define  ALLOW_CLIMSALT_RELAXATION
1271      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1272          tauThetaClimRelax3Dim = 15552000.0,
1273          tauSaltClimRelax3Dim  = 15552000.0,
1274      * 3 cases:
1275          1) Use a constant-in-time 3-dim. field
1276          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1277          3) Real-time relax. to time-evolving prescribed field
1278    o Adding Laplacian-type smoothness constraint on
1279      initial and boundary (forcing) controls (ic, bc)
1280      * enable at compile-time via
1281        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1282      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1283      * Absolute scale somewhat unclear so far
1284      * no area weighting was included since no other cost term does so far
1285    
1286    checkpoint57y_post
1287    First step for a NLFS adjoint
1288    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1289    o new init. routines for calc_r_star, calc_surf_dr
1290    o still need to deal with ini_masks_etc
1291    o testreport seemed happy
1292    checkpoint57y_pre
1293    
1294    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1295    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1296    o add new offset feature to offline pkg (plus minor cleanup)
1297    o cfc fixes for final year of integration
1298    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1299      be in GCHEM_OPTIONS).
1300    
1301    checkpoint57x_post
1302    o fix testreport Pb in multiple test experiment.
1303    o cleanup our namelist syntax in verification:
1304      - make it more F95 standards compliant (some work still needed)
1305      - allows the vast majority of our tests to work with gfortran
1306    o Non-Hydrostatic:
1307     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1308     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1309    o Allow to apply AB on T,S rather than on AB(gT,gS):
1310     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1311     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1312       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1313     - need a "clever" read_pickup to restart from the other AB formulation
1314    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1315    o remove some unused variables (reduces number of compiler warnings)
1316    o adjoint
1317      * Disable useVariableViscosity for adjoint for time being
1318        (there are a number of extensive recomputations)
1319      * Initialize certain variables needed for adjoint
1320    
1321    checkpoint57w_post
1322    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1323                 fix the singleCpuIO RS version of MDSWRITEFIELD
1324       and add a WARNING if using globalFiles=T with multi-processors.
1325    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1326      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1327    o tracer advection scheme:
1328      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1329       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1330       was not very convenient).
1331      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1332       (further tests needed for the implicit DST & Flux-Limiter schemes).
1333    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1334      and sRef for convenience, handy, when you want to initialize
1335      ptracers in a large domain with a constant non-zero value. Also,
1336      untangle ptracers_init.F a little.
1337    
1338    checkpoint57v_post
1339    o change dome exp. to use variable viscosity in side-drag terms.
1340    o remove all the files from the cfc_offline test since they are now
1341      incorporated into tutorial_cfc_offline which has been producing
1342      identical results for a few days of testing
1343    o add new parameter: sideDragFactor to enable half-slip-side BC
1344      and change side-drag S/R to use viscosity from mom_calc_visc
1345      (can switch back by setting sideDragFactor=0.); affects results at
1346      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1347       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1348    o vorticity & strain are now computed without masking, to account for
1349      no-slip-side BC in variable viscosity calculation ; mask is applied
1350      anyway later on, before computing advection/coriolis terms.
1351    o modify exp4 to test new obcs support for reading from external files
1352      and for passive tracers
1353    o fix behavior of ptracers_monitor when monitor output is written to a
1354      netcdf-file; still not independent of monitor.F (writes in the same
1355      file).
1356    o change default value of tRef (put a uniform, meaningful value for ocean
1357      & atmos) and initialize sRef (was missing, as Martin mentioned).
1358    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1359      to be proportional to enstrophy dissipation length.  Thus,
1360       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1361      This is now consistent with Smagorinsky and with the manual.
1362    
1363    checkpoint57u_post
1364    o OBCS and PTRACERS: add open boundary support for passive tracers
1365      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1366        OB-values from file; this is not different from the way theta and salinity
1367        are treated
1368      - however, Orlanski-radiation conditions are not supported, and the model
1369        will stop if you use pTracers and Orlanski at the same time.
1370      - beefed up the rountine obcs_external_fields_load: now only those open
1371        boundary values are overwritten with values from files for which there
1372        are really files, otherwise the OB-fields remain untouched. This makes
1373        it possible to use different OBs at different ends of the domain (as
1374        with EXF)
1375    o reduce number of exch calls in shap_filt (s2).
1376    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1377      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1378    
1379    checkpoint57t_post
1380    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1381    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1382      same truncation, independent of the face number: affects affects several
1383      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1384    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1385      note that biharmonic viscosity + no-slip was not tested in any experiment.
1386    o fix bug in non-linear free-surf side-drag ; generate new output for
1387      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1388    o make mnc honor the writeBinaryPrec flag for most kinds of output
1389    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1390    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1391      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1392    o add brackets in multi-terms sum to get same truncation, independent of
1393      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1394      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1395    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1396      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1397      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1398      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1399      Suggested values of viscosity parameters found in mom_calc_visc.
1400      Many new viscosity diagnostics available.
1401    
1402    checkpoint57s_post
1403    o Add clearing-house for viscosity calculations, mom_calc_visc and
1404      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1405      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1406      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1407      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1408      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1409      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1410      ViscAhStrain and viscAhTension are now retired.
1411    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1412    o In response to JMC's bug report, genmake2 now ignores any soft-links
1413      that it finds in the *current* directory when searching for files.
1414      Soft-links found in any other source directories will still work as
1415      they did before.
1416    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1417      a C routine to unlimit the stack size
1418    o mnc-ify pkg/aim snapshot vars
1419    o mnc-ify pkg/land as requested by Daniel
1420    o various changes to mnc including:
1421      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1422      - output can now be grouped so that all files within a group
1423          change the ITER portion of their names in lock-step together
1424      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1425          and works with both EXCH1 and EXCH2 (but needs more testing)
1426      - writing works for all verification test cases w/ g77 on Linux
1427    
1428    checkpoint57r_post
1429    o make MNC variable initialization happen earlier
1430    o add diagnostics for (almost) each term of the momentum Eq.
1431    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1432    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1433    o remove MINIMAL_TAVE_OUTPUT option ;
1434      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1435    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1436      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1437    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1438    o add time-dependent SST, SSS control
1439    o cost terms in ecco/ modularized (new cost_generic.F)
1440    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1441    o new infrastructure for seaice model vs. obs misfits in seaice/
1442      * driver from the_main_loop.F is seaice_cost_driver.F
1443      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1444      * gradient check in Exp. 6a of natl_box_adjoint/
1445    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1446      (see README file)
1447    
1448    checkpoint57q_post
1449    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1450    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1451      - bug was reported by Jean-Michel and Ian Fenty
1452    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1453      update exp. cpl_aim+ocn output.
1454    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1455      Needed for high-res. runs with large global files
1456      to be able to limit tapelev size
1457    o Changed some tests for adjoint:
1458      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1459      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1460      * global_ocean.90x40x15/ back to default 3-level checkpointing
1461    o Modifications to enable scripted COMMON to MODULE conversion
1462      * verification/OpenAD/code/ has necessary scripts and description;
1463      * converts, compiles and runs successfully;
1464    
1465    checkpoint57p_post
1466    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1467    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1468      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1469    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1470    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1471      (was already the case for dissipation with mom_vecinv,
1472       and also the case for grad.PhiHyd when staggered-timeStep)
1473      This will allow to put dissipation out-off the AB time-stepping.
1474     Unfortunately, affects truncation error. Update output of exp. that "fails"
1475      (cg2d matching number) and leave the others for later: front_relax(10),
1476      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1477      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1478    
1479    checkpoint57o_post
1480    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1481      (2) its ready to be documented during the 20050801 DocFest
1482    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1483      for ideal_2D_oce and lab_sea on linux_ia32_g77
1484    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1485      in global1x1_tot/code_seaice_adj to access indices 32, 33
1486      (worth another tag)
1487    
1488    checkpoint57n_post
1489    o adding precip control xx_precip 32
1490    o adding swflux control xx_swflux 33
1491    o Replacing 10 forcing penalty cost routines by 1 generic.
1492    o Implementing partitioning in time-mean and variable adjustment
1493      for atmos. state.
1494    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1495  o in natl_box_adjoint:  o in natl_box_adjoint:
1496    * updated: results_bulk/    * updated exp 1 to 10
1497    * not yet updated: results/, results_seaice/      (but does not have time-mean vs. variable split results yet)
1498    o updated global1x1/*_seaice_adj/
1499      to incorporate latest changes
1500    o enable useSingleCpuIO for mdsio vector routines
1501      (applies in particular to tapelev I/O)
1502    o removed inefficient K-loop in all active_file*control*.F
1503    
1504  checkpoint57m_post  checkpoint57m_post
1505  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)  o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)

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